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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081e5d0828sm24616275eec.10.2026.06.17.03.37.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Jun 2026 03:37:45 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown Cc: Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Cheng-Yi Chiang , Tzung-Bi Shih , Guenter Roeck , Benson Leung , David Rhodes , Richard Fitzgerald , povik+lin@cutebit.org, Charles Keepax , Support Opensource , Nick Li , Herve Codina , Srinivas Kandagatla , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , Oder Chiou , Lars-Peter Clausen , nuno.sa@analog.com, Steven Eckhoff , patches@opensource.cirrus.com, chrome-platform@lists.linux.dev, asahi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, bui duc phuc Subject: [PATCH 31/78] ASoC: codecs: hdac_hdmi: Use guard() for mutex locks Date: Wed, 17 Jun 2026 17:31:48 +0700 Message-ID: <20260617103235.449609-32-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260617103235.449609-1-phucduc.bui@gmail.com> References: <20260617103235.449609-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc --- sound/soc/codecs/hdac_hdmi.c | 116 +++++++++++++++++------------------ 1 file changed, 56 insertions(+), 60 deletions(-) diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 3220f9226e0b..eeca901aea74 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -537,10 +537,10 @@ static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt( continue; list_for_each_entry(port, &pcm->port_list, head) { - mutex_lock(&pcm->lock); - ret = hdac_hdmi_query_port_connlist(hdev, - port->pin, port); - mutex_unlock(&pcm->lock); + scoped_guard(mutex, &pcm->lock) { + ret = hdac_hdmi_query_port_connlist(hdev, + port->pin, port); + } if (ret < 0) continue; @@ -640,11 +640,11 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt); if (pcm) { - mutex_lock(&pcm->lock); - pcm->chmap_set = false; - memset(pcm->chmap, 0, sizeof(pcm->chmap)); - pcm->channels = 0; - mutex_unlock(&pcm->lock); + scoped_guard(mutex, &pcm->lock) { + pcm->chmap_set = false; + memset(pcm->chmap, 0, sizeof(pcm->chmap)); + pcm->channels = 0; + } } if (dai_map->port) @@ -922,7 +922,7 @@ static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol, if (port == NULL) return -EINVAL; - mutex_lock(&hdmi->pin_mutex); + guard(mutex)(&hdmi->pin_mutex); list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (list_empty(&pcm->port_list)) continue; @@ -945,12 +945,10 @@ static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol, list_add_tail(&port->head, &pcm->port_list); if (port->eld.monitor_present && port->eld.eld_valid) { hdac_hdmi_jack_report_sync(pcm, port, true); - mutex_unlock(&hdmi->pin_mutex); return ret; } } } - mutex_unlock(&hdmi->pin_mutex); return ret; } @@ -1274,67 +1272,66 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, * In case of non MST pin, get_eld info API expectes port * to be -1. */ - mutex_lock(&hdmi->pin_mutex); - port->eld.monitor_present = false; + scoped_guard(mutex, &hdmi->pin_mutex) { + port->eld.monitor_present = false; - if (pin->mst_capable) - port_id = port->id; + if (pin->mst_capable) + port_id = port->id; - size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id, - &port->eld.monitor_present, - port->eld.eld_buffer, - ELD_MAX_SIZE); + size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id, + &port->eld.monitor_present, + port->eld.eld_buffer, + ELD_MAX_SIZE); - if (size > 0) { - size = min(size, ELD_MAX_SIZE); - if (hdac_hdmi_parse_eld(hdev, port) < 0) - size = -EINVAL; - } + if (size > 0) { + size = min(size, ELD_MAX_SIZE); + if (hdac_hdmi_parse_eld(hdev, port) < 0) + size = -EINVAL; + } - eld_valid = port->eld.eld_valid; + eld_valid = port->eld.eld_valid; - if (size > 0) { - port->eld.eld_valid = true; - port->eld.eld_size = size; - } else { - port->eld.eld_valid = false; - port->eld.eld_size = 0; - } + if (size > 0) { + port->eld.eld_valid = true; + port->eld.eld_size = size; + } else { + port->eld.eld_valid = false; + port->eld.eld_size = 0; + } - eld_changed = (eld_valid != port->eld.eld_valid); + eld_changed = (eld_valid != port->eld.eld_valid); - pcm = hdac_hdmi_get_pcm(hdev, port); + pcm = hdac_hdmi_get_pcm(hdev, port); - if (!port->eld.monitor_present || !port->eld.eld_valid) { + if (!port->eld.monitor_present || !port->eld.eld_valid) { - dev_dbg(&hdev->dev, "%s: disconnect for pin:port %d:%d\n", - __func__, pin->nid, port->id); + dev_dbg(&hdev->dev, "%s: disconnect for pin:port %d:%d\n", + __func__, pin->nid, port->id); - /* - * PCMs are not registered during device probe, so don't - * report jack here. It will be done in usermode mux - * control select. - */ - if (pcm) { - hdac_hdmi_jack_report(pcm, port, false); - schedule_work(&port->dapm_work); - } - - mutex_unlock(&hdmi->pin_mutex); - return; - } + /* + * PCMs are not registered during device probe, so don't + * report jack here. It will be done in usermode mux + * control select. + */ + if (pcm) { + hdac_hdmi_jack_report(pcm, port, false); + schedule_work(&port->dapm_work); + } - if (port->eld.monitor_present && port->eld.eld_valid) { - if (pcm) { - hdac_hdmi_jack_report(pcm, port, true); - schedule_work(&port->dapm_work); + return; } - print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1, - port->eld.eld_buffer, port->eld.eld_size, false); + if (port->eld.monitor_present && port->eld.eld_valid) { + if (pcm) { + hdac_hdmi_jack_report(pcm, port, true); + schedule_work(&port->dapm_work); + } + print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1, + port->eld.eld_buffer, port->eld.eld_size, false); + + } } - mutex_unlock(&hdmi->pin_mutex); if (eld_changed && pcm) snd_ctl_notify(hdmi->card, @@ -1795,13 +1792,12 @@ static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx, if (list_empty(&pcm->port_list)) return; - mutex_lock(&pcm->lock); + guard(mutex)(&pcm->lock); pcm->chmap_set = true; memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap)); list_for_each_entry(port, &pcm->port_list, head) if (prepared) hdac_hdmi_setup_audio_infoframe(hdev, pcm, port); - mutex_unlock(&pcm->lock); } static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx) -- 2.43.0